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Any poor quality connector can affect a sector scan and drive performance. Doesn’t matter if it’s connected to a corroded usb port or a bent internal sata, at the end of the day if you’re getting disk errors it’s best to measure using two methodologies/data pathways.
I get around 980 down 450-550 up on a Wifi 6e 160mhz 6ghz link, if I drop to my 5ghz network with 160mhz I run around 770 down and 375 up.